The first record of captive-bred red foxes (Vulpes vulpes) dates to 1896 when a breeding enterprise emerged in the provinces of Atlantic
Canada. Because its domestication happened during recent history, the red fox offers a unique opportunity to examine the genetic diversity
of an emerging domesticated species in the context of documented historical and economic influences. In particular, the historical record
suggests that North American and Eurasian farm-bred populations likely experienced different demographic trajectories. Here, we focus on
the likely impacts of founder effects and genetic drift given historical trends in fox farming on North American and Eurasian farms. A total of 15
mitochondrial haplotypes were identified in 369 foxes from 10 farm populations that we genotyped (n = 161) or that were previously published.
All haplotypes are endemic to North America. Although most haplotypes were consistent with eastern Canadian ancestry, a small number of
foxes carried haplotypes typically found in Alaska and other regions of western North America. The presence of these haplotypes supports his-
torical reports of wild foxes outside of Atlantic Canada being introduced into the breeding stock. These putative Alaskan and Western haplotypes
were more frequently identified in Eurasian farms compared to North American farms, consistent with historical documentation suggesting
that Eurasian economic and breeding practices were likely to maintain low-frequency haplotypes more effectively than in North America.
Contextualizing inter- vs. intra-farm genetic diversity alongside the historical record is critical to understanding the origins of this emerging do-
mesticate and the relationships between wild and farm-bred fox populations.